Question

THanks again everyone ​

Answer 1

`\\ \rm\rightarrowtail 4x-2y=12`

`\\ \rm\rightarrowtail 2y=4x-12`

`\\ \rm\rightarrowtail y=4/2x-12/2`

`\\ \rm\rightarrowtail y=2x-6`

Done